CN103837134A - Differential capacitor type obliquity sensor - Google Patents
Differential capacitor type obliquity sensor Download PDFInfo
- Publication number
- CN103837134A CN103837134A CN201410080290.5A CN201410080290A CN103837134A CN 103837134 A CN103837134 A CN 103837134A CN 201410080290 A CN201410080290 A CN 201410080290A CN 103837134 A CN103837134 A CN 103837134A
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- Prior art keywords
- fixed electorde
- insulation course
- fixed
- differential
- fixed electrode
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- 239000003990 capacitor Substances 0.000 title claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000009413 insulation Methods 0.000 claims description 25
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/20—Measuring inclination, e.g. by clinometers, by levels by using liquids the indication being based on the inclination of the surface of a liquid relative to its container
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C2009/182—Measuring inclination, e.g. by clinometers, by levels by using liquids conductive
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
该发明涉及一种差动电容式倾角传感器，该装置由固定电极A(1)、固定电极B(2)、液态电极（3）、绝缘层（4）、前盖板（5）和后盖板（6）组成；绝缘层（4）为圆柱面形，固定电极A(1)和固定电极B(2)为半圆柱面，正好固定在绝缘层（4）的外面，固定电极A(1)和固定电极B(2)左右对称分布。前盖板（5）和后盖板（6）将绝缘层（4）空腔密封，空腔中装有一半的导电液构成液态电极（3），固定电极A(1)、固定电极B(2)与液态电极（3）构成两个差动电容器；当传感器旋转在水平面上时，差动电容大小相等，放置在倾斜平面时，差动电容一个增大，一个减小，通过测量差动电容的差值来判定倾斜平面的倾角。
The invention relates to a differential capacitive inclination sensor, which consists of a fixed electrode A (1), a fixed electrode B (2), a liquid electrode (3), an insulating layer (4), a front cover (5) and a rear cover plate (6); the insulating layer (4) is cylindrical, the fixed electrode A (1) and the fixed electrode B (2) are semi-cylindrical, just fixed on the outside of the insulating layer (4), and the fixed electrode A (1) ) and the fixed electrode B(2) are symmetrically distributed. The front cover (5) and the rear cover (6) seal the cavity of the insulating layer (4), half of the conductive liquid is filled in the cavity to form a liquid electrode (3), the fixed electrode A (1), the fixed electrode B ( 2) Two differential capacitors are formed with the liquid electrode (3); when the sensor rotates on a horizontal plane, the differential capacitances are equal in size, and when placed on an inclined plane, one of the differential capacitances increases and the other decreases. By measuring the differential The difference in capacitance is used to determine the inclination of the inclined plane.
Description
Technical field
The present invention relates to sensing, machinery, instrument and manufacturing technology, refer in particular to for measurement plane a kind of electrolevel with respect to inclined degree in a direction.
Background technology
Traditional level meter is air bubble type level meter, and air bubble type level meter mainly relies on the side-play amount in bubble offsetting level centre position to carry out the unevenness in a certain region, measuring workpieces surface.Its defect is: air bubble type level meter is very sensitive to temperature, and along with the rising of temperature, bubble length changes, and the size of bubbler tube inner chamber also changes, and causes apparatus measures error to increase; Secondly, the each workplace of air bubble type level meter will be before use whether carry out the zero-bit of determined level instrument according to the position of bubble accurate, and can only measure the horizontality of limited direction, can not detect the angle of inclination; Moreover whether tested planar horizontal obtains with the departure degree of zero-bit by eyes observation level bubble phase pair, testing result has artificial property.This patent designs a kind of differential capacitance type obliquity sensor, for level meter electronization creates conditions.
Summary of the invention
This invention is the problem that solves the existence of traditional air bubble type level meter, designs a kind of differential capacitance type obliquity sensor.This device is made up of fixed electorde A (1), fixed electorde B (2), liquid electrode (3), insulation course (4), front shroud (5) and back shroud (6); Fixed electorde A (1) and fixed electorde B (2) are just in time fixed on the outside of insulation course (4), and front shroud (5) and back shroud (6) are by the cavity sealing of insulation course (4).Insulation course (4) is cylindrical, makes with insulating material; Fixed electorde A (1) and fixed electorde B (2) are semi-cylindrical, make with metal material, fixed electorde A (1) and fixed electorde B (2) are close to the outside surface of insulation course (4), fixed electorde A (1) and the symmetrical distribution of fixed electorde B (2).Front shroud (5) and back shroud (6) are by the insulation course of cylinder shape (4) closed at both ends.Liquid electrode (3) is made up of conduction liquid, is contained in the enclosed cavity of insulation course (4) half in its volume duty chamber; Liquid electrode (3) forms differential capacitor with fixed electorde A (1), fixed electorde B (2).
This beneficial effect of the invention is that structure is simple, cost is low, highly sensitive.
Accompanying drawing explanation
Fig. 1 is invention structural representation, and 1 is that fixed electorde A, 2 is that fixed electorde B, 3 is that liquid electrode, 4 is that insulation course, 5 is that front shroud, 6 is back shroud.
Embodiment
This invention is made up of fixed electorde A (1), fixed electorde B (2), liquid electrode (3), insulation course (4), front shroud (5) and back shroud (6); Fixed electorde A (1) and fixed electorde B (2) are just in time fixed on the outside of insulation course (4), and front shroud (5) and back shroud (6) are by the cavity sealing of insulation course (4).Insulation course (4) is cylindrical, makes with insulating material; Fixed electorde A (1) and fixed electorde B (2) are semi-cylindrical, make with metal material, fixed electorde A (1) and fixed electorde B (2) are close to the outside surface of insulation course (4), fixed electorde A (1) and the symmetrical distribution of fixed electorde B (2).Front shroud (5) and back shroud (6) are by the insulation course of cylinder shape (4) closed at both ends.Liquid electrode (3) is made up of conduction liquid, is contained in the enclosed cavity of insulation course (4) half in its volume duty chamber; Liquid electrode (3) forms differential capacitor with fixed electorde A (1), fixed electorde B (2).
In the present embodiment, for to adopt the face of cylinder made of plastic, internal diameter is 24mm to insulation course (4), and external diameter is 26mm, and cylinder wall thickness is 1mm, and cylinder is long is 25mm; Fixed electorde A (1), fixed electorde B (2) adopt Copper Foil to make, adopt two blocks of 25mm ' 40mm Copper Foils to be pasted on the surface of insulation course (4), form symmetrical two semi-cylindricals, two semi-cylindricals insulate each other, form fixed electorde A (1) and fixed electorde B (2).
In the present embodiment, front shroud (5) and back shroud (6) adopt transparent plastic sheet to make circle, and diameter is 26mm, sticks on the two ends of insulation course (4) by super glue, forms annular seal space.Conduction liquid is injected in annular seal space with syringe, conduction liquid volume accounts for the half of annular seal space volume, and front shroud (5) is squeezed into tinsel below, and tinsel keeps and conduction liquid electrical connection, forms the lead-in wire of liquid electrode (3).
In the present embodiment, in the time that this invention is placed on surface level, fixed electorde A (1), fixed electorde B (2) are symmetrical, form differential capacitor with liquid electrode (3), and now capacitance size equates; In the time that this invention is tilted to the left, left side electric capacity is greater than the right electric capacity, otherwise left side electric capacity is less than the right electric capacity, and the scope that this sensor detects inclination angle is-90 °～90 °.
Claims (4)
1. a differential capacitance type obliquity sensor, is characterized in that being made up of fixed electorde A (1), fixed electorde B (2), liquid electrode (3), insulation course (4), front shroud (5) and back shroud (6); Fixed electorde A (1) and fixed electorde B (2) are just in time fixed on the outside of insulation course (4), and front shroud (5) and back shroud (6) are by the cavity sealing of insulation course (4).
2. a kind of differential capacitance type obliquity sensor according to claim 1, is characterized in that insulation course (4) is for cylindrical, makes with insulating material; Fixed electorde A (1) and fixed electorde B (2) are semi-cylindrical, make with metal material, fixed electorde A (1) and fixed electorde B (2) are close to the outside surface of insulation course (4), fixed electorde A (1) and the symmetrical distribution of fixed electorde B (2).
3. a kind of differential capacitance type obliquity sensor according to claim 1, is characterized in that front shroud (5) and back shroud (6) are by the insulation course of cylinder shape (4) closed at both ends.
4. a kind of differential capacitance type obliquity sensor according to claim 1, is characterized in that liquid electrode (3) is made up of conduction liquid, is contained in the enclosed cavity of insulation course (4) half in its volume duty chamber; Liquid electrode (3) forms differential capacitor with fixed electorde A (1), fixed electorde B (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080290.5A CN103837134A (en) | 2014-03-06 | 2014-03-06 | Differential capacitor type obliquity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410080290.5A CN103837134A (en) | 2014-03-06 | 2014-03-06 | Differential capacitor type obliquity sensor |
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| Publication Number | Publication Date |
|---|---|
| CN103837134A true CN103837134A (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410080290.5A Pending CN103837134A (en) | 2014-03-06 | 2014-03-06 | Differential capacitor type obliquity sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450951A (en) * | 2014-09-30 | 2016-03-30 | 深圳Tcl新技术有限公司 | Television and capacitance level meter |
| CN108691531A (en) * | 2018-05-09 | 2018-10-23 | 中国地质大学（武汉） | A kind of tool face azimuth sensor based on conductance principle |
| CN110454531A (en) * | 2019-07-11 | 2019-11-15 | 江苏长龄液压股份有限公司 | A kind of center is equipped with the spring of detection medium |
| CN115979221A (en) * | 2022-12-05 | 2023-04-18 | 武汉大学 | 3D printing capacitive bionic inclination sensor and its application |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100808A (en) * | 1986-01-23 | 1987-09-02 | 杜拉塞尔国际公司 | A kind of inclination measuring device |
| JPH01140011A (en) * | 1987-09-04 | 1989-06-01 | Etak Inc | Biaxial type inclinometer |
| CN1044853A (en) * | 1990-02-19 | 1990-08-22 | 许建平 | Capacitance type angular-displacement sensor for detecting directional inclination |
| US5014795A (en) * | 1989-05-01 | 1991-05-14 | Augers Unlimited, Inc. | Percent grade boring and monitoring apparatus |
| EP0610050A1 (en) * | 1993-02-01 | 1994-08-10 | Lee/Maatuk Engineering, Inc. | Variable fluid and tilt level sensing probe system |
| CN2548116Y (en) * | 2002-06-13 | 2003-04-30 | 贵州工业大学 | Capacitor-type angle-incidence sensitive device structure |
| CN2733311Y (en) * | 2004-10-26 | 2005-10-12 | 辽宁工程技术大学 | Capacitance-type inclination angle sensor |
| CN203704920U (en) * | 2014-03-06 | 2014-07-09 | 湖南科技学院 | Differential capacitive liquid movable electrode tilt sensor |
-
2014
- 2014-03-06 CN CN201410080290.5A patent/CN103837134A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100808A (en) * | 1986-01-23 | 1987-09-02 | 杜拉塞尔国际公司 | A kind of inclination measuring device |
| JPH01140011A (en) * | 1987-09-04 | 1989-06-01 | Etak Inc | Biaxial type inclinometer |
| US5014795A (en) * | 1989-05-01 | 1991-05-14 | Augers Unlimited, Inc. | Percent grade boring and monitoring apparatus |
| CN1044853A (en) * | 1990-02-19 | 1990-08-22 | 许建平 | Capacitance type angular-displacement sensor for detecting directional inclination |
| EP0610050A1 (en) * | 1993-02-01 | 1994-08-10 | Lee/Maatuk Engineering, Inc. | Variable fluid and tilt level sensing probe system |
| CN2548116Y (en) * | 2002-06-13 | 2003-04-30 | 贵州工业大学 | Capacitor-type angle-incidence sensitive device structure |
| CN2733311Y (en) * | 2004-10-26 | 2005-10-12 | 辽宁工程技术大学 | Capacitance-type inclination angle sensor |
| CN203704920U (en) * | 2014-03-06 | 2014-07-09 | 湖南科技学院 | Differential capacitive liquid movable electrode tilt sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450951A (en) * | 2014-09-30 | 2016-03-30 | 深圳Tcl新技术有限公司 | Television and capacitance level meter |
| CN105450951B (en) * | 2014-09-30 | 2019-04-02 | 深圳Tcl新技术有限公司 | TV and capacitance level instrument |
| CN108691531A (en) * | 2018-05-09 | 2018-10-23 | 中国地质大学（武汉） | A kind of tool face azimuth sensor based on conductance principle |
| CN110454531A (en) * | 2019-07-11 | 2019-11-15 | 江苏长龄液压股份有限公司 | A kind of center is equipped with the spring of detection medium |
| CN115979221A (en) * | 2022-12-05 | 2023-04-18 | 武汉大学 | 3D printing capacitive bionic inclination sensor and its application |
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Application publication date: 20140604 |